Abstract: This Study tries to shed some light on the usage of relative clause ( subject ,direct object and indirect object , object of preposition , possessive , and object of comparison , restrictive, non- restrictive and reduced ) as rich and complex syntactic in modern English Literature through the study of English play to know the most and least frequent types of relative clauses (RCs) used and to prove that modern English language attempts to use the easier type of relative clauses to combine sentence.